skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Galinstan liquid metal breakup and droplet formation in a shock-induced cross-flow

Journal Article · · International Journal of Multiphase Flow
 [1];  [1];  [1];  [2];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Rutgers Univ., Piscataway, NJ (United States)

Liquid metal breakup processes are important for understanding a variety of physical phenomena including metal powder formation, thermal spray coatings, fragmentation in explosive detonations and metalized propellant combustion. Since the breakup behaviors of liquid metals are not well studied, we experimentally investigate the roles of higher density and fast elastic surface oxide formation on breakup morphology and droplet characteristics. This work compares the column breakup of water with Galinstan, a room-temperature eutectic liquid metal alloy of gallium, indium and tin. A shock tube is used to generate a step change in convective velocity and back-lit imaging is used to classify morphologies for Weber numbers up to 250. Digital in-line holography (DIH) is then used to quantitatively capture droplet size, velocity and three-dimensional position information. Differences in geometry between canonical spherical drops and the liquid columns utilized in this paper are likely responsible for observations of earlier transition Weber numbers and uni-modal droplet volume distributions. Scaling laws indicate that Galinstan and water share similar droplet size-velocity trends and root-normal volume probability distributions. Furthermore, measurements indicate that Galinstan breakup occurs earlier in non-dimensional time and produces more non-spherical droplets due to fast oxide formation.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; NA0003525
OSTI ID:
1444082
Alternate ID(s):
OSTI ID: 1548233
Report Number(s):
SAND-2018-6044J; 664065
Journal Information:
International Journal of Multiphase Flow, Vol. 106, Issue C; ISSN 0301-9322
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 22 works
Citation information provided by
Web of Science

References (46)

Deformation and Drag Properties of Round Drops Subjected to Shock-Wave Disturbances journal December 2003
Study of aluminum particle combustion in solid propellant plumes using digital in-line holography and imaging pyrometry journal August 2017
Numerical Simulation of the Twin-Wire Arc Spraying Process: Modeling the High Velocity Gas Flow Field Distribution and Droplets Transport journal December 2011
Temporal properties of secondary drop breakup in the bag breakup regime journal September 1998
Temporal properties of drop breakup in the shear breakup regime journal August 1997
Unsteady drag following shock wave impingement on a dense particle curtain measured using pulse-burst PIV journal June 2017
Emerging Applications of Liquid Metals Featuring Surface Oxides journal October 2014
Eutectic Gallium-Indium (EGaIn): A Liquid Metal Alloy for the Formation of Stable Structures in Microchannels at Room Temperature journal April 2008
The effect of ambient density on drop formation in sprays journal April 1962
Refinement of particle detection by the hybrid method in digital in-line holography journal January 2014
Uncertainty characterization of particle depth measurement using digital in-line holography and the hybrid method journal January 2013
Quantitative, three-dimensional imaging of aluminum drop combustion in solid propellant plumes via digital in-line holography journal January 2014
High-speed (20  kHz) digital in-line holography for transient particle tracking and sizing in multiphase flows journal January 2016
Characterization of drop aerodynamic fragmentation in the bag and sheet-thinning regimes by crossed-beam, two-view, digital in-line holography journal September 2017
Digital holography simulations and experiments to quantify the accuracy of 3D particle location and 2D sizing using a proposed hybrid method journal January 2013
Secondary atomization journal January 2009
Near-limit drop deformation and secondary breakup journal September 1992
Drop properties after secondary breakup journal October 1993
Drop deformation and breakup due to shock wave and steady disturbances journal August 1995
Atomization and Particle-Jet Interactions in the Wire-Arc Spraying Process journal December 2001
Breakup of a liquid drop suddenly exposed to a high-speed airstream journal September 1999
Applications of Holography in Fluid Mechanics and Particle Dynamics journal January 2010
Drop deformation and breakup journal November 2014
Recovery of Nonwetting Characteristics by Surface Modification of Gallium-Based Liquid Metal Droplets Using Hydrochloric Acid Vapor journal December 2012
Stability of liquid metal drops affected by a high-frequency magnetic field journal August 2006
Experimental study on simulated molten jet-coolant interactions journal April 1995
Numerical analysis on molten droplet hydrodynamic deformation and surface waves under high pressure pulse journal March 2015
Shock interaction with a deformable particle: Direct numerical simulation and point-particle modeling journal January 2013
Characterization of Nontoxic Liquid-Metal Alloy Galinstan for Applications in Microdevices journal April 2012
Modeling and characterization of metal droplets generation by using a pneumatic drop-on-demand generator journal March 2012
On the fragmentation characteristics of melt jets quenched in water journal May 2017
Jet break up of liquid metal in twin fluid atomisation journal March 2002
Vacuum-Assisted gas Atomization of Liquid Metal journal January 2012
Numerical simulation of molten droplet deformation and disintegration under sudden accelerations journal March 2014
The physics of aerobreakup. IV. Strain-thickening liquids journal December 2017
GaInSn usage in the research laboratory journal May 2008
Large arc voltage fluctuations and droplet formation in electric arc wire spraying journal October 2003
Use of breakup time data and velocity history data to predict the maximum size of stable fragments for acceleration-induced breakup of a liquid drop journal November 1987
In situ x-ray reflectivity study of the oxidation kinetics of liquid gallium and the liquid alloy journal February 1998
Agglomerate Sizing in Aluminized Propellants Using Digital Inline Holography and Traditional Diagnostics journal July 2018
Aerodynamic shattering of liquid drops. journal February 1969
On The Instability Of Jets journal November 1878
The Correlation of Drop-Size Distributions in Fuel Nozzle Sprays—Part I: The Drop-Size/Volume-Fraction Distribution journal July 1977
Aerobreakup in Rarefied Supersonic Gas Flows journal July 2004
A multiphase shock tube for shock wave interactions with dense particle fields journal February 2012
Influence of density ratio on the secondary atomization of liquid droplets under highly unstable conditions journal June 2016

Cited By (3)

Comparison of simulation and experiments for multimode aerodynamic breakup of a liquid metal column in a shock-induced cross-flow journal August 2019
Ultra-high-speed Pulse-burst Phase Conjugate Digital In-line Holography for Imaging Through Shock-wave Distortions conference January 2019
Improving the spatial dynamic range of digital inline particle holography journal December 2018

Figures / Tables (18)